One of the objectives of the model in "Rank and Uniformity" is to provide components that are useful in the elucidation of rank. These components are not available in your shorter presentation.
rk rank of an array er effective rank fr frame cs cell shape boxr list of boxed cells cells array of boxed cells etc. ----- Original Message ----- From: Raul Miller <[EMAIL PROTECTED]> Date: Thursday, April 5, 2007 10:59 am Subject: Re: [Jgeneral] fleshing out the operation of negative verb rank > On 4/5/07, Roger Hui <[EMAIL PROTECTED]> wrote: > > There is an executable model (algorithmic > > description) of the rank conjunction in my APL95 > > paper "Rank and Uniformity". > > http://www.jsoftware.com/papers/rank.htm > > Also, a somewhat simpler model (which relies on > the native " implementation for positive rank values): > > rank=:2 :0 > tripleR=.3 $&.|. n > neg=.0>tripleR > if.0=+/neg do. u"tripleR return.end. > (u 2 :('u"(0>.({.n)+#$y)y';':';'x u"(0>.(}.n)+x,&([EMAIL PROTECTED])y)y') > tripleR)"(tripleR+neg{0 _) > ) > > +/rank _1 i. 2 2 > 1 5 > > That said, this probably uses features of J which are not covered > in J for C at the point where it initially discusses rank. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
